12E may refer to:
Places Road 12E, see List of highways numbered 12E Tram 12e, a tramline in Lison; see Trams in Lisbon 12e arrondissement (disambiguation)
Transportation Hiller 12E, a helicopter Lorraine 12E Courlis, an aero engine South African Class 12E, an electric locomotive
Other uses 12e Régiment blindé du Canada 12e Régiment de Cuirassiers de France
See also
12 (disambiguation)
E12 (disambiguation) l2E (disambiguation)